webengine/osswebengine/WebCore/html/HTMLElement.cpp
changeset 0 dd21522fd290
child 64 ac77f89b1d9e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebCore/html/HTMLElement.cpp	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,958 @@
+/*
+ * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
+ *           (C) 1999 Antti Koivisto (koivisto@kde.org)
+ * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "config.h"
+#include "HTMLElement.h"
+
+#include "CSSPropertyNames.h"
+#include "CSSValueKeywords.h"
+#include "DocumentFragment.h"
+#include "Event.h"
+#include "EventListener.h"
+#include "EventNames.h"
+#include "ExceptionCode.h"
+#include "Frame.h"
+#include "HTMLBRElement.h"
+#include "HTMLDocument.h"
+#include "HTMLElementFactory.h"
+#include "HTMLFormElement.h"
+#include "HTMLNames.h"
+#include "HTMLTokenizer.h"
+#include "RenderWordBreak.h"
+#include "Settings.h"
+#include "Text.h"
+#include "TextIterator.h"
+#include "XMLTokenizer.h"
+#include "markup.h"
+
+#if PLATFORM(SYMBIAN)
+#include "Page.h"
+#include "Chrome.h" 
+#endif 
+namespace WebCore {
+
+using namespace EventNames;
+using namespace HTMLNames;
+
+using std::min;
+using std::max;
+
+HTMLElement::HTMLElement(const QualifiedName& tagName, Document *doc)
+    : StyledElement(tagName, doc)
+{
+}
+
+HTMLElement::~HTMLElement()
+{
+}
+
+String HTMLElement::nodeName() const
+{
+    // FIXME: Would be nice to have an atomicstring lookup based off uppercase chars that does not have to copy
+    // the string on a hit in the hash.
+    if (document()->isHTMLDocument())
+        return tagQName().localName().impl()->upper();
+    return Element::nodeName();
+}
+    
+HTMLTagStatus HTMLElement::endTagRequirement() const
+{
+    if (hasLocalName(wbrTag))
+        return TagStatusForbidden;
+    if (hasLocalName(dtTag) || hasLocalName(ddTag))
+        return TagStatusOptional;
+
+    // Same values as <span>.  This way custom tag name elements will behave like inline spans.
+    return TagStatusRequired;
+}
+
+int HTMLElement::tagPriority() const
+{
+    if (hasLocalName(wbrTag))
+        return 0;
+    if (hasLocalName(addressTag) || hasLocalName(ddTag) || hasLocalName(dtTag) || hasLocalName(noscriptTag))
+        return 3;
+    if (hasLocalName(centerTag) || hasLocalName(nobrTag))
+        return 5;
+    if (hasLocalName(noembedTag) || hasLocalName(noframesTag))
+        return 10;
+
+    // Same values as <span>.  This way custom tag name elements will behave like inline spans.
+    return 1;
+}
+
+PassRefPtr<Node> HTMLElement::cloneNode(bool deep)
+{
+    RefPtr<HTMLElement> clone = HTMLElementFactory::createHTMLElement(tagQName().localName(), document(), 0, false);
+    if (!clone)
+        return 0;
+
+    if (namedAttrMap)
+        *clone->attributes() = *namedAttrMap;
+
+    clone->copyNonAttributeProperties(this);
+
+    if (deep)
+        cloneChildNodes(clone.get());
+
+    return clone.release();
+}
+
+bool HTMLElement::mapToEntry(const QualifiedName& attrName, MappedAttributeEntry& result) const
+{
+    if (attrName == alignAttr ||
+        attrName == contenteditableAttr) {
+        result = eUniversal;
+        return false;
+    }
+    if (attrName == dirAttr) {
+        result = hasLocalName(bdoTag) ? eBDO : eUniversal;
+        return false;
+    }
+
+    return StyledElement::mapToEntry(attrName, result);
+}
+    
+void HTMLElement::parseMappedAttribute(MappedAttribute *attr)
+{
+    if (attr->name() == idAttr || attr->name() == classAttr || attr->name() == styleAttr)
+        return StyledElement::parseMappedAttribute(attr);
+
+    String indexstring;
+    if (attr->name() == alignAttr) {
+        if (equalIgnoringCase(attr->value(), "middle"))
+            addCSSProperty(attr, CSS_PROP_TEXT_ALIGN, "center");
+        else
+            addCSSProperty(attr, CSS_PROP_TEXT_ALIGN, attr->value());
+    } else if (attr->name() == contenteditableAttr) {
+        setContentEditable(attr);
+    } else if (attr->name() == tabindexAttr) {
+        indexstring = getAttribute(tabindexAttr);
+        if (indexstring.length())
+            // Clamp tabindex to the range of 'short' to match Firefox's behavior.
+            setTabIndex(max(static_cast<int>(std::numeric_limits<short>::min()), min(indexstring.toInt(), static_cast<int>(std::numeric_limits<short>::max()))));
+    } else if (attr->name() == langAttr) {
+        // FIXME: Implement
+    } else if (attr->name() == dirAttr) {
+        addCSSProperty(attr, CSS_PROP_DIRECTION, attr->value());
+        addCSSProperty(attr, CSS_PROP_UNICODE_BIDI, hasLocalName(bdoTag) ? CSS_VAL_BIDI_OVERRIDE : CSS_VAL_EMBED);
+    }
+// standard events
+    else if (attr->name() == onclickAttr) {
+        setHTMLEventListener(clickEvent, attr);
+    } else if (attr->name() == oncontextmenuAttr) {
+        setHTMLEventListener(contextmenuEvent, attr);
+    } else if (attr->name() == ondblclickAttr) {
+        setHTMLEventListener(dblclickEvent, attr);
+    } else if (attr->name() == onmousedownAttr) {
+        setHTMLEventListener(mousedownEvent, attr);
+    } else if (attr->name() == onmousemoveAttr) {
+        setHTMLEventListener(mousemoveEvent, attr);
+    } else if (attr->name() == onmouseoutAttr) {
+        setHTMLEventListener(mouseoutEvent, attr);
+    } else if (attr->name() == onmouseoverAttr) {
+        setHTMLEventListener(mouseoverEvent, attr);
+    } else if (attr->name() == onmouseupAttr) {
+        setHTMLEventListener(mouseupEvent, attr);
+    } else if (attr->name() == onmousewheelAttr) {
+        setHTMLEventListener(mousewheelEvent, attr);
+    } else if (attr->name() == onfocusAttr) {
+        setHTMLEventListener(focusEvent, attr);
+    } else if (attr->name() == onblurAttr) {
+        setHTMLEventListener(blurEvent, attr);
+    } else if (attr->name() == onkeydownAttr) {
+        setHTMLEventListener(keydownEvent, attr);
+    } else if (attr->name() == onkeypressAttr) {
+        setHTMLEventListener(keypressEvent, attr);
+    } else if (attr->name() == onkeyupAttr) {
+        setHTMLEventListener(keyupEvent, attr);
+    } else if (attr->name() == onscrollAttr) {
+        setHTMLEventListener(scrollEvent, attr);
+    } else if (attr->name() == onbeforecutAttr) {
+        setHTMLEventListener(beforecutEvent, attr);
+    } else if (attr->name() == oncutAttr) {
+        setHTMLEventListener(cutEvent, attr);
+    } else if (attr->name() == onbeforecopyAttr) {
+        setHTMLEventListener(beforecopyEvent, attr);
+    } else if (attr->name() == oncopyAttr) {
+        setHTMLEventListener(copyEvent, attr);
+    } else if (attr->name() == onbeforepasteAttr) {
+        setHTMLEventListener(beforepasteEvent, attr);
+    } else if (attr->name() == onpasteAttr) {
+        setHTMLEventListener(pasteEvent, attr);
+    } else if (attr->name() == ondragenterAttr) {
+        setHTMLEventListener(dragenterEvent, attr);
+    } else if (attr->name() == ondragoverAttr) {
+        setHTMLEventListener(dragoverEvent, attr);
+    } else if (attr->name() == ondragleaveAttr) {
+        setHTMLEventListener(dragleaveEvent, attr);
+    } else if (attr->name() == ondropAttr) {
+        setHTMLEventListener(dropEvent, attr);
+    } else if (attr->name() == ondragstartAttr) {
+        setHTMLEventListener(dragstartEvent, attr);
+    } else if (attr->name() == ondragAttr) {
+        setHTMLEventListener(dragEvent, attr);
+    } else if (attr->name() == ondragendAttr) {
+        setHTMLEventListener(dragendEvent, attr);
+    } else if (attr->name() == onselectstartAttr) {
+        setHTMLEventListener(selectstartEvent, attr);
+    } else if (attr->name() == onsubmitAttr) {
+        setHTMLEventListener(submitEvent, attr);
+    } else if (attr->name() == onerrorAttr) {
+        setHTMLEventListener(errorEvent, attr);
+    }
+}
+
+String HTMLElement::innerHTML() const
+{
+    return createMarkup(this, ChildrenOnly);
+}
+
+String HTMLElement::outerHTML() const
+{
+    return createMarkup(this);
+}
+
+PassRefPtr<DocumentFragment> HTMLElement::createContextualFragment(const String &html)
+{
+    // the following is in accordance with the definition as used by IE
+    if (endTagRequirement() == TagStatusForbidden)
+        return 0;
+
+    if (hasLocalName(colTag) || hasLocalName(colgroupTag) || hasLocalName(framesetTag) ||
+        hasLocalName(headTag) || hasLocalName(styleTag) || hasLocalName(titleTag))
+        return 0;
+
+    RefPtr<DocumentFragment> fragment = new DocumentFragment(document());
+    
+    if (document()->isHTMLDocument())
+         parseHTMLDocumentFragment(html, fragment.get());
+    else {
+        if (!parseXMLDocumentFragment(html, fragment.get(), this))
+            // FIXME: We should propagate a syntax error exception out here.
+            return 0;
+    }
+
+    // Exceptions are ignored because none ought to happen here.
+    int ignoredExceptionCode;
+
+    // we need to pop <html> and <body> elements and remove <head> to
+    // accommodate folks passing complete HTML documents to make the
+    // child of an element.
+
+    RefPtr<Node> nextNode;
+    for (RefPtr<Node> node = fragment->firstChild(); node; node = nextNode) {
+        nextNode = node->nextSibling();
+        if (node->hasTagName(htmlTag) || node->hasTagName(bodyTag)) {
+            Node *firstChild = node->firstChild();
+            if (firstChild)
+                nextNode = firstChild;
+            RefPtr<Node> nextChild;
+            for (RefPtr<Node> child = firstChild; child; child = nextChild) {
+                nextChild = child->nextSibling();
+                node->removeChild(child.get(), ignoredExceptionCode);
+                ASSERT(!ignoredExceptionCode);
+                fragment->insertBefore(child, node.get(), ignoredExceptionCode);
+                ASSERT(!ignoredExceptionCode);
+            }
+            fragment->removeChild(node.get(), ignoredExceptionCode);
+            ASSERT(!ignoredExceptionCode);
+        } else if (node->hasTagName(headTag)) {
+            fragment->removeChild(node.get(), ignoredExceptionCode);
+            ASSERT(!ignoredExceptionCode);
+        }
+    }
+
+    return fragment.release();
+}
+
+static inline bool hasOneChild(ContainerNode* node)
+{
+    Node* firstChild = node->firstChild();
+    return firstChild && !firstChild->nextSibling();
+}
+
+static inline bool hasOneTextChild(ContainerNode* node)
+{
+    return hasOneChild(node) && node->firstChild()->isTextNode();
+}
+
+static void replaceChildrenWithFragment(HTMLElement* element, PassRefPtr<DocumentFragment> fragment, ExceptionCode& ec)
+{
+    if (!fragment->firstChild()) {
+        element->removeChildren();
+        return;
+    }
+
+    if (hasOneTextChild(element) && hasOneTextChild(fragment.get())) {
+        static_cast<Text*>(element->firstChild())->setData(static_cast<Text*>(fragment->firstChild())->string(), ec);
+        return;
+    }
+
+    if (hasOneChild(element)) {
+        element->replaceChild(fragment, element->firstChild(), ec);
+        return;
+    }
+
+    #if PLATFORM(SYMBIAN) 
+         element->document()->page()->chrome()->setElementVisibilityChanged(true); 
+     #endif 
+    element->removeChildren();
+    element->appendChild(fragment, ec);
+    
+}
+
+static void replaceChildrenWithText(HTMLElement* element, const String& text, ExceptionCode& ec)
+{
+    if (hasOneTextChild(element)) {
+        static_cast<Text*>(element->firstChild())->setData(text, ec);
+        return;
+    }
+
+    RefPtr<Text> textNode = new Text(element->document(), text);
+
+    if (hasOneChild(element)) {
+        element->replaceChild(textNode.release(), element->firstChild(), ec);
+        return;
+    }
+    #if PLATFORM(SYMBIAN) 
+         element->document()->page()->chrome()->setElementVisibilityChanged(true); 
+     #endif 
+
+    element->removeChildren();
+    element->appendChild(textNode.release(), ec);
+    
+}
+
+void HTMLElement::setInnerHTML(const String& html, ExceptionCode& ec)
+{
+    RefPtr<DocumentFragment> fragment = createContextualFragment(html);
+    if (!fragment) {
+        ec = NO_MODIFICATION_ALLOWED_ERR;
+        return;
+    }
+
+    replaceChildrenWithFragment(this, fragment.release(), ec);
+}
+
+void HTMLElement::setOuterHTML(const String& html, ExceptionCode& ec)
+{
+    Node* p = parent();
+    if (!p || !p->isHTMLElement()) {
+        ec = NO_MODIFICATION_ALLOWED_ERR;
+        return;
+    }
+
+    HTMLElement* parent = static_cast<HTMLElement*>(p);
+    RefPtr<DocumentFragment> fragment = parent->createContextualFragment(html);
+    if (!fragment) {
+        ec = NO_MODIFICATION_ALLOWED_ERR;
+        return;
+    }
+
+    // FIXME: Why doesn't this have code to merge neighboring text nodes the way setOuterText does?
+
+    parent->replaceChild(fragment.release(), this, ec);
+}
+
+void HTMLElement::setInnerText(const String& text, ExceptionCode& ec)
+{
+    // follow the IE specs about when this is allowed
+    if (endTagRequirement() == TagStatusForbidden) {
+        ec = NO_MODIFICATION_ALLOWED_ERR;
+        return;
+    }
+    if (hasLocalName(colTag) || hasLocalName(colgroupTag) || hasLocalName(framesetTag) ||
+        hasLocalName(headTag) || hasLocalName(htmlTag) || hasLocalName(tableTag) || 
+        hasLocalName(tbodyTag) || hasLocalName(tfootTag) || hasLocalName(theadTag) ||
+        hasLocalName(trTag)) {
+        ec = NO_MODIFICATION_ALLOWED_ERR;
+        return;
+    }
+
+    // FIXME: This doesn't take whitespace collapsing into account at all.
+
+    if (!text.contains('\n') && !text.contains('\r')) {
+        if (text.isEmpty()) {
+            removeChildren();
+            return;
+        }
+        replaceChildrenWithText(this, text, ec);
+        return;
+    }
+
+    // FIXME: Do we need to be able to detect preserveNewline style even when there's no renderer?
+    // FIXME: Can the renderer be out of date here? Do we need to call updateRendering?
+    // For example, for the contents of textarea elements that are display:none?
+    RenderObject* r = renderer();
+    if (r && r->style()->preserveNewline()) {
+        if (!text.contains('\r')) {
+            replaceChildrenWithText(this, text, ec);
+            return;
+        }
+        String textWithConsistentLineBreaks = text;
+        textWithConsistentLineBreaks.replace("\r\n", "\n");
+        textWithConsistentLineBreaks.replace('\r', '\n');
+        replaceChildrenWithText(this, textWithConsistentLineBreaks, ec);
+        return;
+    }
+
+    // Add text nodes and <br> elements.
+    ec = 0;
+    RefPtr<DocumentFragment> fragment = new DocumentFragment(document());
+    int lineStart = 0;
+    UChar prev = 0;
+    int length = text.length();
+    for (int i = 0; i < length; ++i) {
+        UChar c = text[i];
+        if (c == '\n' || c == '\r') {
+            if (i > lineStart) {
+                fragment->appendChild(new Text(document(), text.substring(lineStart, i - lineStart)), ec);
+                if (ec)
+                    return;
+            }
+            if (!(c == '\n' && i != 0 && prev == '\r')) {
+                fragment->appendChild(new HTMLBRElement(document()), ec);
+                if (ec)
+                    return;
+            }
+            lineStart = i + 1;
+        }
+        prev = c;
+    }
+    if (length > lineStart)
+        fragment->appendChild(new Text(document(), text.substring(lineStart, length - lineStart)), ec);
+    replaceChildrenWithFragment(this, fragment.release(), ec);
+}
+
+void HTMLElement::setOuterText(const String &text, ExceptionCode& ec)
+{
+    // follow the IE specs about when this is allowed
+    if (endTagRequirement() == TagStatusForbidden) {
+        ec = NO_MODIFICATION_ALLOWED_ERR;
+        return;
+    }
+    if (hasLocalName(colTag) || hasLocalName(colgroupTag) || hasLocalName(framesetTag) ||
+        hasLocalName(headTag) || hasLocalName(htmlTag) || hasLocalName(tableTag) || 
+        hasLocalName(tbodyTag) || hasLocalName(tfootTag) || hasLocalName(theadTag) ||
+        hasLocalName(trTag)) {
+        ec = NO_MODIFICATION_ALLOWED_ERR;
+        return;
+    }
+
+    Node* parent = parentNode();
+    if (!parent) {
+        ec = NO_MODIFICATION_ALLOWED_ERR;
+        return;
+    }
+
+    // FIXME: This creates a new text node even when the text is empty.
+    // FIXME: This creates a single text node even when the text has CR and LF
+    // characters in it. Instead it should create <br> elements.
+    RefPtr<Text> t = new Text(document(), text);
+    ec = 0;
+    parent->replaceChild(t, this, ec);
+    if (ec)
+        return;
+
+    // is previous node a text node? if so, merge into it
+    Node* prev = t->previousSibling();
+    if (prev && prev->isTextNode()) {
+        Text* textPrev = static_cast<Text*>(prev);
+        textPrev->appendData(t->data(), ec);
+        if (ec)
+            return;
+        t->remove(ec);
+        if (ec)
+            return;
+        t = textPrev;
+    }
+
+    // is next node a text node? if so, merge it in
+    Node* next = t->nextSibling();
+    if (next && next->isTextNode()) {
+        Text* textNext = static_cast<Text*>(next);
+        t->appendData(textNext->data(), ec);
+        if (ec)
+            return;
+        textNext->remove(ec);
+        if (ec)
+            return;
+    }
+}
+
+void HTMLElement::addHTMLAlignment(MappedAttribute* attr)
+{
+    // vertical alignment with respect to the current baseline of the text
+    // right or left means floating images
+    int propfloat = -1;
+    int propvalign = -1;
+    const AtomicString& alignment = attr->value();
+    if (equalIgnoringCase(alignment, "absmiddle")) {
+        propvalign = CSS_VAL_MIDDLE;
+    } else if (equalIgnoringCase(alignment, "absbottom")) {
+        propvalign = CSS_VAL_BOTTOM;
+    } else if (equalIgnoringCase(alignment, "left")) {
+        propfloat = CSS_VAL_LEFT;
+        propvalign = CSS_VAL_TOP;
+    } else if (equalIgnoringCase(alignment, "right")) {
+        propfloat = CSS_VAL_RIGHT;
+        propvalign = CSS_VAL_TOP;
+    } else if (equalIgnoringCase(alignment, "top")) {
+        propvalign = CSS_VAL_TOP;
+    } else if (equalIgnoringCase(alignment, "middle")) {
+        propvalign = CSS_VAL__WEBKIT_BASELINE_MIDDLE;
+    } else if (equalIgnoringCase(alignment, "center")) {
+        propvalign = CSS_VAL_MIDDLE;
+    } else if (equalIgnoringCase(alignment, "bottom")) {
+        propvalign = CSS_VAL_BASELINE;
+    } else if (equalIgnoringCase(alignment, "texttop")) {
+        propvalign = CSS_VAL_TEXT_TOP;
+    }
+    
+    if ( propfloat != -1 )
+        addCSSProperty( attr, CSS_PROP_FLOAT, propfloat );
+    if ( propvalign != -1 )
+        addCSSProperty( attr, CSS_PROP_VERTICAL_ALIGN, propvalign );
+}
+
+bool HTMLElement::isFocusable() const
+{
+    return isContentEditable() && parent() && !parent()->isContentEditable();
+}
+
+bool HTMLElement::isContentEditable() const 
+{
+    if (document()->frame() && document()->frame()->isContentEditable())
+        return true;
+
+    document()->updateRendering();
+
+    if (!renderer()) {
+        if (parentNode())
+            return parentNode()->isContentEditable();
+        else
+            return false;
+    }
+    
+    return renderer()->style()->userModify() == READ_WRITE || renderer()->style()->userModify() == READ_WRITE_PLAINTEXT_ONLY;
+}
+
+bool HTMLElement::isContentRichlyEditable() const
+{
+    if (document()->frame() && document()->frame()->isContentEditable())
+        return true;
+
+    document()->updateRendering();
+
+    if (!renderer()) {
+        if (parentNode())
+            return parentNode()->isContentEditable();
+        else
+            return false;
+    }
+    
+    return renderer()->style()->userModify() == READ_WRITE;
+}
+
+String HTMLElement::contentEditable() const 
+{
+    document()->updateRendering();
+
+    if (!renderer())
+        return "false";
+    
+    switch (renderer()->style()->userModify()) {
+        case READ_WRITE:
+            return "true";
+        case READ_ONLY:
+            return "false";
+        case READ_WRITE_PLAINTEXT_ONLY:
+            return "plaintext-only";
+        default:
+            return "inherit";
+    }
+}
+
+void HTMLElement::setContentEditable(MappedAttribute* attr) 
+{
+    const AtomicString& enabled = attr->value();
+    if (enabled.isEmpty() || equalIgnoringCase(enabled, "true")) {
+        addCSSProperty(attr, CSS_PROP__WEBKIT_USER_MODIFY, CSS_VAL_READ_WRITE);
+        addCSSProperty(attr, CSS_PROP_WORD_WRAP, CSS_VAL_BREAK_WORD);
+        addCSSProperty(attr, CSS_PROP__WEBKIT_NBSP_MODE, CSS_VAL_SPACE);
+        addCSSProperty(attr, CSS_PROP__WEBKIT_LINE_BREAK, CSS_VAL_AFTER_WHITE_SPACE);
+    } else if (equalIgnoringCase(enabled, "false")) {
+        addCSSProperty(attr, CSS_PROP__WEBKIT_USER_MODIFY, CSS_VAL_READ_ONLY);
+        attr->decl()->removeProperty(CSS_PROP_WORD_WRAP, false);
+        attr->decl()->removeProperty(CSS_PROP__WEBKIT_NBSP_MODE, false);
+        attr->decl()->removeProperty(CSS_PROP__WEBKIT_LINE_BREAK, false);
+    } else if (equalIgnoringCase(enabled, "inherit")) {
+        addCSSProperty(attr, CSS_PROP__WEBKIT_USER_MODIFY, CSS_VAL_INHERIT);
+        attr->decl()->removeProperty(CSS_PROP_WORD_WRAP, false);
+        attr->decl()->removeProperty(CSS_PROP__WEBKIT_NBSP_MODE, false);
+        attr->decl()->removeProperty(CSS_PROP__WEBKIT_LINE_BREAK, false);
+    } else if (equalIgnoringCase(enabled, "plaintext-only")) {
+        addCSSProperty(attr, CSS_PROP__WEBKIT_USER_MODIFY, CSS_VAL_READ_WRITE_PLAINTEXT_ONLY);
+        addCSSProperty(attr, CSS_PROP_WORD_WRAP, CSS_VAL_BREAK_WORD);
+        addCSSProperty(attr, CSS_PROP__WEBKIT_NBSP_MODE, CSS_VAL_SPACE);
+        addCSSProperty(attr, CSS_PROP__WEBKIT_LINE_BREAK, CSS_VAL_AFTER_WHITE_SPACE);
+    }
+}
+
+void HTMLElement::setContentEditable(const String &enabled)
+{
+    if (enabled == "inherit") {
+        ExceptionCode ec;
+        removeAttribute(contenteditableAttr, ec);
+    }
+    else
+        setAttribute(contenteditableAttr, enabled.isEmpty() ? "true" : enabled);
+}
+
+void HTMLElement::click()
+{
+    dispatchSimulatedClick(0, false, false);
+}
+
+// accessKeyAction is used by the accessibility support code
+// to send events to elements that our JavaScript caller does
+// does not.  The elements JS is interested in have subclasses
+// that override this method to direct the click appropriately.
+// Here in the base class, then, we only send the click if
+// the caller wants it to go to any HTMLElement, and we say
+// to send the mouse events in addition to the click.
+void HTMLElement::accessKeyAction(bool sendToAnyElement)
+{
+    if (sendToAnyElement)
+        dispatchSimulatedClick(0, true);
+}
+
+String HTMLElement::toString() const
+{
+    if (!hasChildNodes() && document()->isHTMLDocument()) {
+        String result = openTagStartToString();
+        result += ">";
+
+        if (endTagRequirement() == TagStatusRequired) {
+            result += "</";
+            result += nodeName();
+            result += ">";
+        }
+
+        return result;
+    }
+
+    return Element::toString();
+}
+
+String HTMLElement::id() const
+{
+    return getAttribute(idAttr);
+}
+
+void HTMLElement::setId(const String& value)
+{
+    setAttribute(idAttr, value);
+}
+
+String HTMLElement::title() const
+{
+    return getAttribute(titleAttr);
+}
+
+void HTMLElement::setTitle(const String& value)
+{
+    setAttribute(titleAttr, value);
+}
+
+String HTMLElement::lang() const
+{
+    return getAttribute(langAttr);
+}
+
+void HTMLElement::setLang(const String& value)
+{
+    setAttribute(langAttr, value);
+}
+
+String HTMLElement::dir() const
+{
+    return getAttribute(dirAttr);
+}
+
+void HTMLElement::setDir(const String &value)
+{
+    setAttribute(dirAttr, value);
+}
+
+String HTMLElement::className() const
+{
+    return getAttribute(classAttr);
+}
+
+void HTMLElement::setClassName(const String &value)
+{
+    setAttribute(classAttr, value);
+}
+
+PassRefPtr<HTMLCollection> HTMLElement::children()
+{
+    return new HTMLCollection(this, HTMLCollection::NodeChildren);
+}
+
+// DOM Section 1.1.1
+bool HTMLElement::childAllowed(Node *newChild)
+{
+    if (!Element::childAllowed(newChild))
+        return false;
+
+    // For XML documents, we are non-validating and do not check against a DTD, even for HTML elements.
+    if (!document()->isHTMLDocument())
+        return true;
+
+    // Future-proof for XML content inside HTML documents (we may allow this some day).
+    if (newChild->isElementNode() && !newChild->isHTMLElement())
+        return true;
+
+    // Elements with forbidden tag status can never have children
+    if (endTagRequirement() == TagStatusForbidden)
+        return false;
+
+    // Comment nodes are always allowed.
+    if (newChild->isCommentNode())
+        return true;
+
+    // Now call checkDTD.
+    return checkDTD(newChild);
+}
+
+// DTD Stuff
+// This unfortunate function is only needed when checking against the DTD.  Other languages (like SVG) won't need this.
+bool HTMLElement::isRecognizedTagName(const QualifiedName& tagName)
+{
+    static HashSet<AtomicStringImpl*> tagList;
+    if (tagList.isEmpty()) {
+        size_t tagCount = 0;
+        WebCore::QualifiedName** tags = HTMLNames::getHTMLTags(&tagCount);
+        for (size_t i = 0; i < tagCount; i++)
+            tagList.add(tags[i]->localName().impl());
+    }
+    return tagList.contains(tagName.localName().impl());
+}
+
+// The terms inline and block are used here loosely.  Don't make the mistake of assuming all inlines or all blocks
+// need to be in these two lists.
+HashSet<AtomicStringImpl*>* inlineTagList()
+{
+    static HashSet<AtomicStringImpl*> tagList;
+    if (tagList.isEmpty()) {
+        tagList.add(ttTag.localName().impl());
+        tagList.add(iTag.localName().impl());
+        tagList.add(bTag.localName().impl());
+        tagList.add(uTag.localName().impl());
+        tagList.add(sTag.localName().impl());
+        tagList.add(strikeTag.localName().impl());
+        tagList.add(bigTag.localName().impl());
+        tagList.add(smallTag.localName().impl());
+        tagList.add(emTag.localName().impl());
+        tagList.add(strongTag.localName().impl());
+        tagList.add(dfnTag.localName().impl());
+        tagList.add(codeTag.localName().impl());
+        tagList.add(sampTag.localName().impl());
+        tagList.add(kbdTag.localName().impl());
+        tagList.add(varTag.localName().impl());
+        tagList.add(citeTag.localName().impl());
+        tagList.add(abbrTag.localName().impl());
+        tagList.add(acronymTag.localName().impl());
+        tagList.add(aTag.localName().impl());
+        tagList.add(canvasTag.localName().impl());
+        tagList.add(imgTag.localName().impl());
+        tagList.add(appletTag.localName().impl());
+        tagList.add(objectTag.localName().impl());
+        tagList.add(embedTag.localName().impl());
+        tagList.add(fontTag.localName().impl());
+        tagList.add(basefontTag.localName().impl());
+        tagList.add(brTag.localName().impl());
+        tagList.add(scriptTag.localName().impl());
+        tagList.add(mapTag.localName().impl());
+        tagList.add(qTag.localName().impl());
+        tagList.add(subTag.localName().impl());
+        tagList.add(supTag.localName().impl());
+        tagList.add(spanTag.localName().impl());
+        tagList.add(bdoTag.localName().impl());
+        tagList.add(iframeTag.localName().impl());
+        tagList.add(inputTag.localName().impl());
+        tagList.add(keygenTag.localName().impl());
+        tagList.add(selectTag.localName().impl());
+        tagList.add(textareaTag.localName().impl());
+        tagList.add(labelTag.localName().impl());
+        tagList.add(buttonTag.localName().impl());
+        tagList.add(insTag.localName().impl());
+        tagList.add(delTag.localName().impl());
+        tagList.add(nobrTag.localName().impl());
+        tagList.add(wbrTag.localName().impl());
+#if PLATFORM(SYMBIAN)             
+        tagList.add(bgsoundTag.localName().impl());
+#endif           
+    }
+    return &tagList;
+}
+
+HashSet<AtomicStringImpl*>* blockTagList()
+{
+    static HashSet<AtomicStringImpl*> tagList;
+    if (tagList.isEmpty()) {
+        tagList.add(addressTag.localName().impl());
+        tagList.add(blockquoteTag.localName().impl());
+        tagList.add(centerTag.localName().impl());
+        tagList.add(ddTag.localName().impl());
+        tagList.add(dirTag.localName().impl());
+        tagList.add(divTag.localName().impl());
+        tagList.add(dlTag.localName().impl());
+        tagList.add(dtTag.localName().impl());
+        tagList.add(fieldsetTag.localName().impl());
+        tagList.add(formTag.localName().impl());
+        tagList.add(h1Tag.localName().impl());
+        tagList.add(h2Tag.localName().impl());
+        tagList.add(h3Tag.localName().impl());
+        tagList.add(h4Tag.localName().impl());
+        tagList.add(h5Tag.localName().impl());
+        tagList.add(h6Tag.localName().impl());
+        tagList.add(hrTag.localName().impl());
+        tagList.add(isindexTag.localName().impl());
+        tagList.add(layerTag.localName().impl());
+        tagList.add(liTag.localName().impl());
+        tagList.add(listingTag.localName().impl());
+        tagList.add(marqueeTag.localName().impl());
+        tagList.add(menuTag.localName().impl());
+        tagList.add(noembedTag.localName().impl());
+        tagList.add(noframesTag.localName().impl());
+        tagList.add(nolayerTag.localName().impl());
+        tagList.add(noscriptTag.localName().impl());
+        tagList.add(olTag.localName().impl());
+        tagList.add(pTag.localName().impl());
+        tagList.add(plaintextTag.localName().impl());
+        tagList.add(preTag.localName().impl());
+        tagList.add(tableTag.localName().impl());
+        tagList.add(ulTag.localName().impl());
+        tagList.add(xmpTag.localName().impl());
+    }
+    return &tagList;
+}
+
+bool HTMLElement::inEitherTagList(const Node* newChild)
+{
+    if (newChild->isTextNode())
+        return true;
+        
+    if (newChild->isHTMLElement()) {
+        const HTMLElement* child = static_cast<const HTMLElement*>(newChild);
+        if (inlineTagList()->contains(child->tagQName().localName().impl()))
+            return true;
+        if (blockTagList()->contains(child->tagQName().localName().impl()))
+            return true;
+        return !isRecognizedTagName(child->tagQName()); // Accept custom html tags
+    }
+
+    return false;
+}
+
+bool HTMLElement::inInlineTagList(const Node* newChild)
+{
+    if (newChild->isTextNode())
+        return true;
+
+    if (newChild->isHTMLElement()) {
+        const HTMLElement* child = static_cast<const HTMLElement*>(newChild);
+        if (inlineTagList()->contains(child->tagQName().localName().impl()))
+            return true;
+        return !isRecognizedTagName(child->tagQName()); // Accept custom html tags
+    }
+
+    return false;
+}
+
+bool HTMLElement::inBlockTagList(const Node* newChild)
+{
+    if (newChild->isTextNode())
+        return true;
+            
+    if (newChild->isHTMLElement()) {
+        const HTMLElement* child = static_cast<const HTMLElement*>(newChild);
+        return (blockTagList()->contains(child->tagQName().localName().impl()));
+    }
+
+    return false;
+}
+
+bool HTMLElement::checkDTD(const Node* newChild)
+{
+    if (hasLocalName(addressTag) && newChild->hasTagName(pTag))
+        return true;
+    return inEitherTagList(newChild);
+}
+
+void HTMLElement::setHTMLEventListener(const AtomicString& eventType, Attribute* attr)
+{
+    Element::setHTMLEventListener(eventType,
+        document()->createHTMLEventListener(attr->localName().domString(), attr->value(), this));
+}
+    
+bool HTMLElement::rendererIsNeeded(RenderStyle *style)
+{
+    if (hasLocalName(noscriptTag)) {
+        Settings* settings = document()->settings();
+        if (settings && settings->isJavaScriptEnabled())
+            return false;
+    }
+    return (document()->documentElement() == this) || (style->display() != NONE);
+}
+    
+RenderObject* HTMLElement::createRenderer(RenderArena* arena, RenderStyle* style)
+{
+    if (hasLocalName(wbrTag))
+        return new (arena) RenderWordBreak(this);
+    return RenderObject::createObject(this, style);
+}
+
+HTMLFormElement* HTMLElement::findFormAncestor() const
+{
+    for (Node* ancestor = parentNode(); ancestor; ancestor = ancestor->parentNode())
+        if (ancestor->hasTagName(formTag))
+            return static_cast<HTMLFormElement*>(ancestor);
+    return 0;
+}
+
+HTMLFormElement* HTMLElement::virtualForm() const
+{
+    return findFormAncestor();
+}
+
+} // namespace WebCore
+
+#ifndef NDEBUG
+void dumpInnerHTML(WebCore::HTMLElement* element)
+{
+    printf("%s\n", element->innerHTML().ascii().data());
+}
+#endif